The Zenitron - Page 2

Circlomanen · 15th April 2005, 03:48 PM

I think this is a X circuit!? It has two feedbackloops spanning across the two sides of the amp, and it has a connection between the sourcepins of the fets. Its loadad with a centertapped choke, very much similar to the SONOF ZEN with x and inductive loading (ZV 7-T) as Mr Pass calls it in the "more fun with the son of zen and supersymmetry" article

Nelson Pass · 15th April 2005, 05:14 PM

Quote:

Originally posted by Circlomanen
Based on the numbers of replyes I dont think people are very intrested or they dont understand the circuit. I know the circlotron circuit confuses a lot of people, so im not very surprised.
I think this circuite had generated a lot more fuzz if THE MASTER had published aa article about it on his own website.Or maybe everybody is to much into the X things nowdays

I'm very pleased to see another permutation of the single-stage
approach. I have counted more than a hundred variations, not
including circlotrons, but I have only had time to build about
15 so far. There are about 10 left that I want to do, and that
leaves a lot of territory for others to explore.

It is very likely that the circlotron idea is confusing to a lot of
people - it takes a while to wrap your head around it. If you
push on with it (by this I mean build some) then you will see
more interest, I think.

Circlomanen · 15th April 2005, 05:29 PM

Quote:

I have counted more than a hundred variations, not
including circlotrons, but I have only had time to build about
15 so far. There are about 10 left that I want to do

WOW!!!

Im VERY CURIOUS about the 10 that you have left to try!

Quote:

It is very likely that the circlotron idea is confusing to a lot of
people - it takes a while to wrap your head around it. If you
push on with it (by this I mean build some) then you will see
more interest, I think.

Yes probably! Im building it tonight. Im very curious about the Zenitron to. See how good it works (if it works

).

Circlomanen · 15th April 2005, 10:11 PM

A little warning if anybody tries to build any of my circlotron-amps. If a solderjoint or a fet goes to hifiheaven, then so will your speaker! Very fast. You might like to run it with a big capacitor on the output the first couple of hours.The quiesent current of one side is interdependent of the other side so if one side turns off, the other will open, i think.That means 20 volt DC directly on your woofer. Experiense!

Circlomanen · 15th April 2005, 11:20 PM

ITs ALIVE!!!
With a quisent current of about 100mA it can play realy loud (bieng this late at night in sweden) I cant realy comment on the sound since im only playing it on my junkspeaker.
More tomorow.
Anybody want to see pics??

Stocker · 16th April 2005, 03:21 AM

Is that a rhetorical question?

Of course everyone wants to see pics!

Circlomanen · 16th April 2005, 08:31 AM

Quote:

ITs ALIVE!!!
With a quisent current of about 100mA it can play realy loud (bieng this late at night in sweden) I cant realy comment on the sound since im only playing it on my junkspeaker.
More tomorow.

Its one strange amp!
Yesterday when i started listening to it, one FET ran 300 mA through the circuit but the other FET was closed.And it still played music! The bass was a bit strange and weak but thats probably because of saturation in the choke-core.
I noticed it when i started measuring everything thios morning, and by the hum and noice that i was hearing. It shouldnt be any noice from a balanced circuit at idle.
The very strange part of it is that there was no DC offset on the output!???
Its seems to be an extremly stable and selfcorrecting amp. When i balaced out the currents it realy started to sing! It sounds beutifull!!!
At the moment im running it in class A/B.

Pictures are comming later, I have to go to work.

Circlomanen · 16th April 2005, 06:20 PM

WOW!! That many componenents!!!
The little transformer on the side is my little singelend-balanced-converter.

That big piece of iron is my centertapped choke.

Blues · 16th April 2005, 08:43 PM

A lot of us will be happy if you can explain more how the Circlotron circuit works...especially as you presented it. Then we can share with your excitement

Thanks!

Circlomanen · 16th April 2005, 08:47 PM

Some more circlotronamps:

This is the ZEN version 2 with a ALEPH current source but in a horizontal arrangement,AKA circlotron. Singel end circlotron.
Notice, You dont need any coupling capacitor on the output!

And this is the ZENITRON singelend with a powerresistor and a lightbulb instead of ALEPH currentsource.

15th April 2005, 03:48 PM	#11
Circlomanen diyAudio Member Join Date: Sep 2004 Location: Göteborg	I think this is a X circuit!? It has two feedbackloops spanning across the two sides of the amp, and it has a connection between the sourcepins of the fets. Its loadad with a centertapped choke, very much similar to the SONOF ZEN with x and inductive loading (ZV 7-T) as Mr Pass calls it in the "more fun with the son of zen and supersymmetry" article __________________ We live in a horizontal world, why use vertical topologies???

15th April 2005, 10:11 PM	#14
Circlomanen diyAudio Member Join Date: Sep 2004 Location: Göteborg	A little warning if anybody tries to build any of my circlotron-amps. If a solderjoint or a fet goes to hifiheaven, then so will your speaker! Very fast. You might like to run it with a big capacitor on the output the first couple of hours.The quiesent current of one side is interdependent of the other side so if one side turns off, the other will open, i think.That means 20 volt DC directly on your woofer. Experiense! __________________ We live in a horizontal world, why use vertical topologies???

15th April 2005, 11:20 PM	#15
Circlomanen diyAudio Member Join Date: Sep 2004 Location: Göteborg	NOW PLAYING AT AT THEATRE FAR FRON YOU. ITs ALIVE!!! With a quisent current of about 100mA it can play realy loud (bieng this late at night in sweden) I cant realy comment on the sound since im only playing it on my junkspeaker. More tomorow. Anybody want to see pics?? __________________ We live in a horizontal world, why use vertical topologies???

16th April 2005, 03:21 AM	#16
Stocker diyAudio Member Join Date: Dec 2003 Location: Austin	Is that a rhetorical question? Of course everyone wants to see pics! __________________ Jesus loves you.

16th April 2005, 06:20 PM	#18
Circlomanen diyAudio Member Join Date: Sep 2004 Location: Göteborg	WOW!! That many componenents!!! The little transformer on the side is my little singelend-balanced-converter. That big piece of iron is my centertapped choke. __________________ We live in a horizontal world, why use vertical topologies???


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16th April 2005, 08:43 PM	#19
Blues Lightning In A Bottle diyAudio Member Join Date: Sep 2003 Location: The Milky Way	A lot of us will be happy if you can explain more how the Circlotron circuit works...especially as you presented it. Then we can share with your excitement Thanks!

16th April 2005, 08:47 PM	#20
Circlomanen diyAudio Member Join Date: Sep 2004 Location: Göteborg	Some more circlotronamps: This is the ZEN version 2 with a ALEPH current source but in a horizontal arrangement,AKA circlotron. Singel end circlotron. Notice, You dont need any coupling capacitor on the output! And this is the ZENITRON singelend with a powerresistor and a lightbulb instead of ALEPH currentsource. __________________ We live in a horizontal world, why use vertical topologies???

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